My car is throwing code 41, which is the Oxygen Sensor heater. I went and purchaced a new oxygen sensor and the socket I need to remove the old one. The problem is, I can't get the old sensor to budge for the life of me. I was thinking about removing the heat shield for the exhaust manafold, but the bolts seem so rusted that they will break off if I go to remove them. What other options do I have to remove this? Thanks.